Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 779,504	$ 1,735,621
Investment securities, available-for-sale, at fair value	1,084,309	1,041,790
Accounts receivable, net
Trade - billed (less allowance for doubtful accounts of $345,118 and $375,919)	7,977,742	6,795,215
Trade - unbilled	636,201	197,363
Inventories
Raw materials	929,434	724,143
Finished goods	1,773,335	1,770,141
Prepaid expenses and other assets	384,901	194,429
Refundable income taxes	542,190	383,820
Deferred taxes	558,000	665,000
Total current assets	14,665,616	13,507,522
Property and equipment, net	5,953,514	5,073,867
Other assets	192,952	268,721
Total assets	20,812,082	18,850,110
Current liabilities
Accounts payable - trade	2,497,565	1,743,945
Accrued expenses and other liabilities	1,010,211	974,785
Accrued compensation	858,907	449,723
Income taxes payable	748,012	435,717
Customer deposits	586,176	923,943
Total current liabilities	5,700,871	4,528,113
Notes payable - less current maturities	2,283,935	2,076,675
Deferred tax liability	1,089,000	855,000
Total liabilities	9,073,806	7,459,788
Commitments and contingencies	0	0
Stockholders’ equity
Preferred stock, $.01 par value; authorized 1,000,000 shares, none issued and outstanding	0	0
Common stock, $.01 par value; authorized 8,000,000 shares; 4,919,548 issued and 4,878,628 outstanding	49,195	49,195
Additional paid-in capital	5,110,398	5,110,398
Treasury stock, at cost, 40,920 shares	(102,300)	(102,300)
Accumulated other comprehensive loss, net	9,450	(9,357)
Retained earnings	6,671,533	6,342,386
Total stockholders’ equity	11,738,276	11,390,322
Total liabilities and stockholders' equity	$ 20,812,082	$ 18,850,110