Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 1,292,784	$ 4,367,474
Investment securities, available-for-sale, at fair value	1,932,751	0
Accounts receivable, net
Trade - billed (less allowance for doubtful accounts of $241,275 and $230,749)	7,308,078	4,752,729
Trade - unbilled	0	356,525
Inventories
Raw materials	887,794	472,149
Finished goods	1,092,536	1,631,957
Prepaid expenses and other assets	189,982	287,002
Refundable income taxes	91,405	173,155
Deferred taxes	461,000	438,000
Total current assets	13,256,330	12,478,991
Property and equipment, net	3,962,576	4,049,478
Other assets	293,488	289,335
Total assets	17,512,394	16,817,804
Current liabilities
Accounts payable - trade	1,195,632	922,091
Accrued expenses and other liabilities	1,153,429	1,140,234
Current maturities of notes payable	334,928	329,529
Customer deposits	746,408	204,991
Total current liabilities	3,430,397	2,596,845
Notes payable - less current maturities	2,526,341	2,661,228
Deferred tax liability	648,000	694,000
Total liabilities	6,604,738	5,952,073
Commitments and contingencies		0
Stockholders’ equity
Preferred stock, $.01 par value; authorized 1,000,000 shares, none outstanding	0	0
Common stock, $.01 par value; authorized 8,000,000 shares; 4,835,882 issued	48,359	48,262
Additional paid-in capital	5,003,612	4,995,278
Accumulated other comprehensive loss	(59,005)	0
Retained earnings	6,016,990	5,924,491
Stockholders' Equity before Treasury Stock	11,009,956	10,968,031
Treasury stock, at cost, 40,920 shares	(102,300)	(102,300)
Total stockholders’ equity	10,907,656	10,865,731
Total liabilities and stockholders' equity	$ 17,512,394	$ 16,817,804