Restatement and Revision of Prior Period Financial Statements - Condensed Consolidated Statements of Income (Details) - USD ($)	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $3,534 and $2,622, respectively	$ 200,799,000	$ 206,242,000	$ 184,713,000	$ 182,464,000	$ 185,659,000	$ 188,247,000	$ 196,251,000		$ 182,464,000		$ 182,464,000		$ 182,464,000
Revenue	305,367,000	288,523,000	280,066,000	264,405,000	275,727,000	276,002,000	272,212,000	$ 270,461,000	544,471,000	$ 542,673,000	832,994,000	$ 818,675,000	1,138,361,000	$ 1,094,402,000	$ 1,028,892,000
Cost of Goods Sold		216,602,000	210,020,000	199,701,000		209,421,000	206,232,000	208,935,000	409,721,000	415,167,000	626,323,000	624,588,000	862,903,000	831,838,000	788,862,000
Gross profit	68,787,000	71,921,000	70,046,000	64,704,000	68,477,000	66,581,000	65,980,000	61,526,000	134,750,000	127,506,000	206,671,000	194,087,000	275,458,000	262,564,000	240,030,000
Selling, general and administrative		57,186,000	55,054,000	53,615,000		52,466,000	51,622,000	51,477,000	108,669,000	103,099,000	165,855,000	155,565,000	227,253,000	209,524,000	197,247,000
Income (loss) from operations		11,585,000	9,926,000	9,225,000		7,796,000	1,739,000	198,000	19,151,000	1,937,000	30,736,000	9,732,000	34,138,000	19,022,000	(13,213,000)
Income (loss) before taxes		10,844,000	7,736,000	8,032,000		6,517,000	1,069,000	(1,026,000)	15,768,000	42,000	26,612,000	6,559,000	27,718,000	14,783,000	(20,891,000)
Income tax expense (benefit)		3,728,000	3,362,000	2,354,000		2,292,000	2,974,000	2,110,000	5,716,000	5,084,000	9,444,000	7,376,000	11,288,000	10,834,000	11,498,000
Net income (loss)	$ (738,000)	$ 7,116,000	$ 4,374,000	$ 5,678,000	$ 4,765,000	$ 4,225,000	$ (1,905,000)	$ (3,136,000)	$ 10,052,000	$ (5,043,000)	$ 17,168,000	$ (817,000)	$ 16,430,000	$ 3,949,000	$ (32,389,000)
Basic earnings (loss) per share (in USD per share)	$ (0.01)	$ 0.13	$ 0.08	$ 0.11	$ 0.09	$ 0.08	$ (0.04)	$ (0.06)	$ 0.19	$ (0.09)	$ 0.32	$ (0.02)	$ 0.31	$ 0.07	$ (0.61)
Diluted earnings (loss) per share (in USD per share)	$ (0.01)	$ 0.13	$ 0.08	$ 0.10	$ 0.09	$ 0.08	$ (0.04)	$ (0.06)	$ 0.18	$ (0.09)	$ 0.31	$ (0.02)	$ 0.30	$ 0.07	$ (0.61)
Comprehensive income (loss)		$ 9,284,000	$ 8,253,000	$ 7,657,000		$ 4,024,000	$ (3,295,000)	$ (3,411,000)	$ 15,911,000	$ (6,708,000)	$ 25,196,000	$ (2,683,000)	$ 18,150,000	$ (3,198,000)	$ (40,640,000)
Deferred income taxes				478,000				(546,000)	624,000	557,000	448,000	372,000	4,072,000	4,226,000	5,879,000
Increase decrease in accounts receivable and unbilled receivables				(4,680,000)				(15,863,000)	(26,620,000)	(4,738,000)	(35,732,000)	(11,573,000)	(41,877,000)	(2,651,000)	(10,580,000)
Increase (Decrease) in Inventories				(226,000)				453,000	1,890,000	(725,000)	(17,726,000)	(10,027,000)	(4,245,000)	6,355,000	(9,676,000)
Increase (Decrease) in Prepaid Expense and Other Assets				(1,167,000)				5,968,000	(971,000)	5,742,000	(10,567,000)	(7,622,000)	(13,547,000)	(8,206,000)	(4,140,000)
Accounts payable				(8,396,000)				(31,526,000)	3,370,000	(21,506,000)	7,395,000	(31,551,000)	18,152,000	(38,408,000)	25,102,000
Accrued expenses and other liabilities				4,923,000				11,627,000	(69,000)	3,110,000	10,830,000	7,543,000	15,520,000	12,933,000	3,582,000
Net cash provided by operating activities				120,000				(24,566,000)	(1,687,000)	(848,000)	(12,383,000)	(23,632,000)	16,056,000	10,525,000	43,402,000
Unbilled revenue	$ 50,016,000	48,645,000	34,264,000	33,771,000	$ 31,516,000	37,982,000	29,202,000	32,457,000	34,264,000	29,202,000	48,645,000	37,982,000	50,016,000	31,516,000
Inventories	40,694,000	54,174,000	34,558,000	36,674,000	36,448,000	52,830,000	43,528,000	42,350,000	34,558,000	43,528,000	54,174,000	52,830,000	40,694,000	36,448,000
Prepaid expenses	18,565,000	22,018,000	23,588,000	23,912,000	18,459,000	11,551,000	11,712,000	12,524,000	23,588,000	11,712,000	22,018,000	11,551,000	18,565,000	18,459,000
Other current assets	37,865,000	31,529,000	20,475,000	20,302,000	24,597,000	31,302,000	17,738,000	16,699,000	20,475,000	17,738,000	31,529,000	31,302,000	37,865,000	24,597,000
Total current assets	383,088,000	384,847,000	342,664,000	329,292,000	324,408,000	340,111,000	322,033,000	321,210,000	342,664,000	322,033,000	384,847,000	340,111,000	383,088,000	324,408,000
Other non-current assets	1,636,000	1,592,000	1,547,000	1,633,000	1,654,000	1,426,000	1,415,000	1,469,000	1,547,000	1,415,000	1,592,000	1,426,000	1,636,000	1,654,000
Total intangibles and other assets	229,836,000	238,473,000	237,926,000	236,794,000	236,923,000	241,003,000	242,025,000	244,903,000	237,926,000	242,025,000	238,473,000	241,003,000	229,836,000	236,923,000
Total assets	649,638,000	660,532,000	616,620,000	600,086,000	593,987,000	613,393,000	597,148,000	599,321,000	616,620,000	597,148,000	660,532,000	613,393,000	649,638,000	593,987,000
Accounts payable	141,164,000	130,406,000	126,382,000	114,616,000	123,012,000	129,869,000	139,914,000	129,894,000	126,382,000	139,914,000	130,406,000	129,869,000	141,164,000	123,012,000
Accrued expenses	34,391,000	32,889,000	27,409,000	32,422,000	29,755,000	20,788,000	16,096,000	23,939,000	27,409,000	16,096,000	32,889,000	20,788,000	34,391,000	29,755,000
Other current liabilities	24,078,000	30,416,000	25,210,000	24,359,000	22,576,000	25,760,000	24,200,000	24,401,000	25,210,000	24,200,000	30,416,000	25,760,000	24,078,000	22,576,000
Deferred revenue	17,620,000	15,709,000	15,392,000	16,885,000	16,402,000	13,409,000	15,180,000	14,589,000	15,392,000	15,180,000	15,709,000	13,409,000	17,620,000	16,402,000
Total current liabilities	217,253,000	209,420,000	212,235,000	206,540,000	211,028,000	210,829,000	207,779,000	207,558,000	212,235,000	207,779,000	209,420,000	210,829,000	217,253,000	211,028,000
Deferred income taxes	12,043,000	9,839,000	9,876,000	9,818,000	10,766,000	10,622,000	11,060,905	9,652,000	9,876,000	11,060,905	9,839,000	10,622,000	12,043,000	10,766,000
Other long-term liabilities	7,399,000	2,595,000	2,625,000	2,697,000	2,564,000	2,591,000	2,995,000	3,129,000	2,625,000	2,995,000	2,595,000	2,591,000	7,399,000	2,564,000
Total liabilities	365,093,000	371,038,000	343,394,000	332,746,000	331,826,000	357,776,000	348,100,000	348,142,000	343,394,000	348,100,000	371,038,000	357,776,000	365,093,000	331,826,000
Accumulated other comprehensive loss	(19,229,000)	(12,922,000)	(15,090,000)	(18,970,000)	(20,949,000)	(15,668,000)	(15,467,000)	(14,077,000)	(15,090,000)	(15,467,000)	(12,922,000)	(15,668,000)	(19,229,000)	(20,949,000)
Retained earnings	124,442,000	124,369,000	117,504,000	113,147,000	108,082,000	103,918,000	99,693,000	101,734,000	117,504,000	99,693,000	124,369,000	103,918,000	124,442,000	108,082,000
Total stockholders' equity	284,545,000	289,494,000	273,226,000	267,340,000	262,161,000	255,617,000	249,048,000	251,179,000	273,226,000	249,048,000	289,494,000	255,617,000	284,545,000	262,161,000	252,432,000	$ 290,260,000
Total liabilities and stockholders' equity	649,638,000	660,532,000	616,620,000	600,086,000	593,987,000	613,393,000	597,148,000	599,321,000	616,620,000	597,148,000	660,532,000	613,393,000	649,638,000	593,987,000
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $3,534 and $2,622, respectively	203,306,000	208,382,000	187,028,000	182,874,000	190,438,000	193,297,000	200,629,000		182,874,000		182,874,000		182,874,000
Revenue	300,950,000	288,386,000	279,530,000	267,390,000	270,418,000	279,993,000	269,220,000	271,073,000	546,920,000	540,292,000	835,306,000	820,286,000	1,136,256,000	1,090,704,000	1,029,353,000
Cost of Goods Sold		215,867,000	209,303,000	203,113,000		212,212,000	204,126,000	209,127,000	412,416,000	413,253,000	628,282,000	625,465,000	857,921,000	827,156,000	789,159,000
Gross profit	71,311,000	72,519,000	70,227,000	64,277,000	68,727,000	67,781,000	65,093,000	61,946,000	134,504,000	127,039,000	207,024,000	194,821,000	278,335,000	263,548,000	240,194,000
Selling, general and administrative		57,134,000	55,086,000	53,427,000		52,601,000	51,418,000	51,492,000	108,513,000	102,910,000	165,647,000	155,511,000	225,738,000	209,967,000	197,291,000
Income (loss) from operations		12,236,000	10,075,000	8,986,000		8,860,000	1,056,000	603,000	19,061,000	1,659,000	31,297,000	10,520,000	38,530,000	19,563,000	(13,093,000)
Income (loss) before taxes		11,495,000	7,884,000	7,793,000		7,581,000	386,000	(621,000)	15,678,000	(235,000)	27,173,000	7,347,000	32,110,000	15,325,000	(20,771,000)
Income tax expense (benefit)		3,967,000	3,391,000	2,337,000		3,240,000	2,710,000	2,072,000	5,727,000	4,782,000	9,694,000	8,023,000	13,131,000	10,955,000	12,292,000
Net income (loss)	$ 1,500,000	$ 7,528,000	$ 4,493,000	$ 5,456,000	$ 5,047,000	$ 4,341,000	$ (2,324,000)	$ (2,693,000)	$ 9,951,000	$ (5,017,000)	$ 17,479,000	$ (676,000)	$ 18,979,000	$ 4,370,000	$ (33,063,000)
Basic earnings (loss) per share (in USD per share)	$ 0.03	$ 0.14	$ 0.08	$ 0.10	$ 0.09	$ 0.08	$ (0.04)	$ (0.05)	$ 0.19	$ (0.09)	$ 0.32	$ (0.01)	$ 0.35	$ 0.08	$ (0.63)
Diluted earnings (loss) per share (in USD per share)	$ 0.03	$ 0.14	$ 0.08	$ 0.10	$ 0.09	$ 0.08	$ (0.04)	$ (0.05)	$ 0.18	$ (0.09)	$ 0.32	$ (0.01)	$ 0.35	$ 0.08	$ (0.63)
Comprehensive income (loss)		$ 9,696,000	$ 8,373,000	$ 7,435,000		$ 4,140,000	$ (3,714,000)	$ (3,163,000)	$ 15,810,000	$ (6,877,000)	$ 25,506,000	$ (2,201,000)	$ 20,697,000	$ (2,436,000)	$ (41,655,000)
Deferred income taxes				(16,000)				(389,000)	76,000	450,000	(82,000)	677,000	3,744,000	4,084,000	6,947,000
Increase decrease in accounts receivable and unbilled receivables				(7,318,000)				(16,256,000)	(29,395,000)	(2,366,000)	(38,108,000)	(12,798,000)	(40,959,000)	1,809,000	(10,361,000)
Increase (Decrease) in Inventories				1,300,000				(1,388,000)	3,446,000	(2,573,000)	(17,106,000)	(12,050,000)	(3,169,000)	1,690,000	(8,188,000)
Increase (Decrease) in Prepaid Expense and Other Assets				(979,000)				16,382,000	(957,000)	16,255,000	(10,401,000)	3,574,000	(8,989,000)	2,442,000	(6,138,000)
Accounts payable				(6,890,000)				(40,196,000)	4,304,000	(33,984,000)	8,312,000	(40,264,000)	13,320,000	(48,955,000)	26,199,000
Accrued expenses and other liabilities				5,057,000				11,518,000	851,000	4,632,000	11,722,000	7,861,000	11,670,000	12,759,000	2,118,000
Net cash provided by operating activities				120,000				(24,566,000)	(1,687,000)	(848,000)	(12,383,000)	(23,632,000)	16,147,000	10,525,000	43,402,000
Unbilled revenue	$ 49,389,000	50,130,000	36,515,000	35,712,000	$ 32,723,000	40,505,000	27,857,000	34,548,000	36,515,000	27,857,000	50,130,000	40,505,000	49,389,000	32,723,000
Inventories	34,807,000	48,744,000	28,192,000	30,338,000	31,638,000	45,377,000	35,901,000	34,715,000	28,192,000	35,901,000	48,744,000	45,377,000	34,807,000	31,638,000
Prepaid expenses	19,638,000				18,772,000	11,984,000	12,145,000	12,957,000		12,145,000		11,984,000	19,638,000	18,772,000
Other current assets	32,694,000	31,850,000	20,949,000	20,598,000	24,769,000	30,528,000	17,647,000	16,708,000	20,949,000	17,647,000	31,850,000	30,528,000	32,694,000	24,769,000
Total current assets	373,802,000	383,730,000	341,163,000	327,508,000	321,700,000	339,619,000	318,453,000	320,485,000	341,163,000	318,453,000	383,730,000	339,619,000	373,802,000	321,700,000
Other non-current assets	1,382,000	1,312,000	1,267,000	1,353,000	1,374,000				1,267,000		1,312,000		1,382,000	1,374,000
Total intangibles and other assets	229,503,000	238,193,000	237,646,000	236,514,000	236,642,000				237,646,000		238,193,000		229,503,000	236,642,000
Total assets	640,019,000	659,135,000	614,839,000	598,022,000	590,999,000	612,901,000	593,567,000	598,596,000	614,839,000	593,567,000	659,135,000	612,901,000	640,019,000	590,999,000
Accounts payable	134,609,000	129,600,000	125,593,000	114,399,000	121,289,000	129,980,000	136,260,000	130,048,000	125,593,000	136,260,000	129,600,000	129,980,000	134,609,000	121,289,000
Accrued expenses	33,694,000	32,994,000	27,567,000	32,547,000	30,068,000	21,037,000	17,818,000	24,257,000	27,567,000	17,818,000	32,994,000	21,037,000	33,694,000	30,068,000
Other current liabilities	20,956,000	31,589,000	26,163,000	25,231,000	22,971,000				26,163,000		31,589,000		20,956,000	22,971,000
Deferred revenue	13,685,000	11,707,000	11,585,000	12,405,000	12,078,000	9,755,000	11,793,000	10,975,000	11,585,000	11,793,000	11,707,000	9,755,000	13,685,000	12,078,000
Total current liabilities	202,943,000	205,890,000	208,750,000	202,840,000	205,688,000	207,535,000	202,460,000	204,416,000	208,750,000	202,460,000	205,890,000	207,535,000	202,943,000	205,688,000
Deferred income taxes	12,348,000	9,834,000	9,852,000	9,848,000	11,291,000	11,594,000	11,620,000	10,476,000	9,852,000	11,620,000	9,834,000	11,594,000	12,348,000	11,291,000
Other long-term liabilities	6,771,000	1,958,000	1,988,000	2,060,000	1,926,000	2,235,000	2,639,000	2,772,000	1,988,000	2,639,000	1,958,000	2,235,000	6,771,000	1,926,000
Total liabilities	350,461,000	366,866,000	339,248,000	328,439,000	326,373,000	355,098,000	342,984,000	345,466,000	339,248,000	342,984,000	366,866,000	355,098,000	350,461,000	326,373,000
Accumulated other comprehensive loss	(19,079,000)	(12,772,000)	(14,940,000)	(18,820,000)	(20,799,000)	(15,518,000)	(15,853,000)	(14,463,000)	(14,940,000)	(15,853,000)	(12,772,000)	(15,518,000)	(19,079,000)	(20,799,000)
Retained earnings	129,305,000	126,994,000	119,719,000	115,240,000	110,397,000	105,954,000	101,614,000	104,071,000	119,719,000	101,614,000	126,994,000	105,954,000	129,305,000	110,397,000
Total stockholders' equity	289,559,000	292,269,000	275,591,000	269,583,000	264,626,000	257,803,000	250,583,000	253,130,000	275,591,000	250,583,000	292,269,000	257,803,000	289,559,000	264,626,000
Total liabilities and stockholders' equity	640,019,000	659,135,000	614,839,000	598,022,000	590,999,000	612,901,000	593,567,000	598,596,000	614,839,000	593,567,000	659,135,000	612,901,000	640,019,000	590,999,000
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $3,534 and $2,622, respectively	(2,507,000)	(2,140,000)	(2,315,000)	(410,000)	(4,779,000)	(5,050,000)	(4,378,000)		(410,000)		(410,000)		(410,000)
Revenue	4,417,000	137,000	536,000	(2,985,000)	5,309,000	(3,991,000)	2,992,000	(612,000)	(2,449,000)	2,381,000	(2,312,000)	(1,611,000)	2,105,000	3,698,000	(461,000)
Cost of Goods Sold		735,000	717,000	(3,412,000)		(2,791,000)	2,106,000	(192,000)	(2,695,000)	1,914,000	(1,959,000)	(877,000)	4,982,000	4,682,000	(297,000)
Gross profit	(2,524,000)	(598,000)	(181,000)	427,000	(250,000)	(1,200,000)	886,000	(420,000)	246,000	467,000	(353,000)	(734,000)	(2,877,000)	(984,000)	(164,000)
Selling, general and administrative		52,000	(32,000)	188,000		(135,000)	203,000	(15,000)	156,000	189,000	208,000	54,000	1,515,000	(443,000)	(44,000)
Income (loss) from operations		(649,000)	(149,000)	239,000		(1,064,000)	683,000	(405,000)	90,000	278,000	(561,000)	(788,000)	(4,392,000)	(541,000)	(120,000)
Income (loss) before taxes		(650,000)	(149,000)	239,000		(1,064,000)	683,000	(405,000)	90,000	277,000	(562,000)	(788,000)	(4,392,000)	(542,000)	(120,000)
Income tax expense (benefit)		(239,000)	(29,000)	17,000		(948,000)	264,000	38,000	(11,000)	302,000	(250,000)	(647,000)	(1,843,000)	(121,000)	(794,000)
Net income (loss)	$ (2,238,000)	$ (411,000)	$ (120,000)	$ 222,000	$ (282,000)	$ (116,000)	$ 419,000	$ (443,000)	$ 101,000	$ (26,000)	$ (311,000)	$ (141,000)	$ (2,549,000)	$ (421,000)	$ 674,000
Basic earnings (loss) per share (in USD per share)	$ (0.04)	$ (0.01)	$ 0.00	$ 0.01	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ (0.04)	$ (0.01)	$ 0.02
Diluted earnings (loss) per share (in USD per share)	$ (0.04)	$ (0.01)	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ 0.00	$ 0.00	$ (0.01)	$ (0.01)	$ (0.05)	$ (0.01)	$ 0.02
Comprehensive income (loss)		$ (411,000)	$ (120,000)	$ 222,000		$ (116,000)	$ 419,000	$ (248,000)	$ 101,000	$ 169,000	$ (311,000)	$ (482,000)	$ (2,547,000)	$ (762,000)	$ 1,015,000
Deferred income taxes				494,000				(157,000)	548,000	107,000	530,000	(305,000)	328,000	142,000	(1,068,000)
Increase decrease in accounts receivable and unbilled receivables				2,638,000				393,000	2,775,000	(2,372,000)	2,376,000	1,225,000	(918,000)	(4,460,000)	219,000
Increase (Decrease) in Inventories				(1,526,000)				1,841,000	(1,556,000)	1,848,000	(620,000)	2,023,000	(1,076,000)	4,665,000	1,488,000
Increase (Decrease) in Prepaid Expense and Other Assets				(188,000)				(10,414,000)	(14,000)	(10,513,000)	(166,000)	(11,196,000)	(4,558,000)	(10,648,000)	(1,998,000)
Accounts payable				(1,506,000)				8,670,000	(934,000)	12,478,000	(917,000)	8,713,000	4,832,000	10,547,000	(1,097,000)
Accrued expenses and other liabilities				(134,000)				109,000	(920,000)	(1,522,000)	(891,000)	(318,000)	3,850,000	174,000	1,464,000
Net cash provided by operating activities				0				0	0	0	0	0	(91,000)	0	$ 0
Unbilled revenue	$ 627,000	(1,485,000)	(2,251,000)	(1,941,000)	$ (1,207,000)	(2,523,000)	1,345,000	(2,091,000)	(2,251,000)	1,345,000	(1,485,000)	(2,523,000)	627,000	(1,207,000)
Inventories	5,887,000	5,430,000	6,366,000	6,336,000	4,810,000	7,453,000	7,627,000	7,635,000	6,366,000	7,627,000	5,430,000	7,453,000	5,887,000	4,810,000
Prepaid expenses	(1,073,000)				(313,000)	(433,000)	(433,000)	(433,000)		(433,000)		(433,000)	(1,073,000)	(313,000)
Other current assets	5,171,000	(321,000)	(474,000)	(296,000)	(172,000)	774,000	92,000	(8,000)	(474,000)	92,000	(321,000)	774,000	5,171,000	(172,000)
Total current assets	9,286,000	1,117,000	1,501,000	1,784,000	2,708,000	492,000	3,580,000	725,000	1,501,000	3,580,000	1,117,000	492,000	9,286,000	2,708,000
Other non-current assets	254,000	280,000	280,000	280,000	280,000				280,000		280,000		254,000	280,000
Total intangibles and other assets	333,000	280,000	280,000	280,000	280,000				280,000		280,000		333,000	280,000
Total assets	9,619,000	1,397,000	1,781,000	2,064,000	2,988,000	492,000	3,582,000	725,000	1,781,000	3,582,000	1,397,000	492,000	9,619,000	2,988,000
Accounts payable	6,555,000	806,000	789,000	217,000	1,723,000	(111,000)	3,654,000	(154,000)	789,000	3,654,000	806,000	(111,000)	6,555,000	1,723,000
Accrued expenses	697,000	(105,000)	(158,000)	(125,000)	(313,000)	(249,000)	(1,722,000)	(318,000)	(158,000)	(1,722,000)	(105,000)	(249,000)	697,000	(313,000)
Other current liabilities	3,122,000	(1,173,000)	(953,000)	(872,000)	(395,000)				(953,000)		(1,173,000)		3,122,000	(395,000)
Deferred revenue	3,935,000	4,002,000	3,807,000	4,480,000	4,324,000	3,654,000	3,387,000	3,614,000	3,807,000	3,387,000	4,002,000	3,654,000	3,935,000	4,324,000
Total current liabilities	14,310,000	3,530,000	3,485,000	3,700,000	5,340,000	3,294,000	5,319,000	3,142,000	3,485,000	5,319,000	3,530,000	3,294,000	14,310,000	5,340,000
Deferred income taxes	(305,000)	5,000	24,000	(30,000)	(525,000)	(972,000)	(559,000)	(824,000)	24,000	(559,000)	5,000	(972,000)	(305,000)	(525,000)
Other long-term liabilities	628,000	637,000	637,000	637,000	638,000	356,000	356,000	358,000	637,000	356,000	637,000	356,000	628,000	638,000
Total liabilities	14,632,000	4,172,000	4,146,000	4,307,000	5,453,000	2,678,000	5,116,000	2,676,000	4,146,000	5,116,000	4,172,000	2,678,000	14,632,000	5,453,000
Accumulated other comprehensive loss	(150,000)	(150,000)	(150,000)	(150,000)	(150,000)	(150,000)	386,000	386,000	(150,000)	386,000	(150,000)	(150,000)	(150,000)	(150,000)
Retained earnings	(4,863,000)	(2,625,000)	(2,215,000)	(2,093,000)	(2,315,000)	(2,036,000)	(1,921,000)	(2,337,000)	(2,215,000)	(1,921,000)	(2,625,000)	(2,036,000)	(4,863,000)	(2,315,000)
Total stockholders' equity	(5,014,000)	(2,775,000)	(2,365,000)	(2,243,000)	(2,465,000)	(2,186,000)	(1,535,000)	(1,951,000)	(2,365,000)	(1,535,000)	(2,775,000)	(2,186,000)	(5,014,000)	(2,465,000)
Total liabilities and stockholders' equity	$ 9,619,000	$ 1,397,000	$ 1,781,000	$ 2,064,000	$ 2,988,000	$ 492,000	$ 3,581,000	$ 725,000	$ 1,781,000	$ 3,581,000	$ 1,397,000	$ 492,000	9,619,000	2,988,000
Unbilled Revenue | Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue													1,000,000
Unbilled Revenue on Statement of Income													$ 2,100,000	$ 1,000,000