Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 3,522,620	$ 1,735,621
Investment securities, available-for-sale, at fair value	1,050,220	1,041,790
Accounts receivable, net
Trade - billed, (less allowance for doubtful accounts of $347,087 and $375,919)	7,187,630	6,795,215
Trade - unbilled	270,622	197,363
Inventories, net
Raw materials	642,467	724,143
Finished goods	1,936,350	1,770,141
Prepaid expenses and other assets	370,597	194,429
Refundable income taxes	251,115	383,820
Deferred taxes	640,000	665,000
Total current assets	15,871,621	13,507,522
Property and equipment, net	8,007,518	5,073,867
Other assets	173,086	268,721
Total assets	24,052,225	18,850,110
Current liabilities
Accounts payable - trade	2,139,760	1,743,945
Accrued expenses and other liabilities	1,018,083	974,785
Accrued compensation	882,749	449,723
Current maturities of notes payable	587,523	435,717
Customer deposits	431,480	923,943
Total current liabilities	5,059,595	4,528,113
Notes payable - less current maturities	3,345,511	2,076,675
Deferred tax liability	1,404,000	855,000
Total liabilities	9,809,106	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; 5,085,348 and 4,919,548 issued and 4,941,428 and 4,881,548 outstanding, respectively	49,823	49,195
Additional paid-in capital	5,192,339	5,110,398
Treasury stock, at cost, 40,920 shares	(102,300)	(102,300)
Accumulated other comprehensive loss	(24,913)	(9,357)
Retained earnings	9,128,170	6,342,386
Total stockholders’ equity	14,243,119	11,390,322
Total liabilities and stockholders' equity	$ 24,052,225	$ 18,850,110