Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 13,073,331	$ 11,966,863
Accounts receivable, net	3,091,251	6,463,050
Costs and estimated earnings in excess of billings on contracts in progress	4,635,018	2,498,662
Inventories, net	2,986,430	4,842,059
Restricted cash	200,000	200,000
Deferred income taxes	398,009	2,887,960
Other current assets	167,056	194,756
Total Current Assets	24,551,095	29,053,350
Property, plant and equipment, net	14,793,923	15,025,283
Construction in progress	33,306	389,276
Deferred income taxes	$ 1,606,830	750,133
Restricted cash-long-term		200,000
Other assets	$ 86,215	82,559
Intangible assets, net	60,335	55,871
Total Assets	42,806,204	45,556,472
Current Liabilities
Accounts payable	308,004	1,682,838
Accrued expenses	3,445,880	3,297,052
Current maturities of long-term debt	$ 580,000	720,000
Billings in excess of costs and estimated earnings on contracts in progress		1,328,508
Deferred revenue	$ 307,683	488,691
Accrued litigation settlement		4,925,000
Total Current Liabilities	$ 4,641,567	12,442,089
Long-term debt, net of current portion	3,265,508	3,845,508
Total Liabilities	$ 7,907,075	$ 16,287,597
Commitments and Contingencies (Note 16)
Stockholders’ Equity:
Common stock - $0.01 par value – 10,000,000 shares authorized: issued and outstanding, 6,198,135 shares at December 31, 2015 and 6,162,027 shares at December 31, 2014	$ 61,981	$ 61,620
Additional paid-in capital	22,895,202	22,144,805
Retained earnings	10,267,446	7,062,450
Total Stockholders’ Equity	33,224,629	29,268,875
Total Liabilities and Stockholders’ Equity	$ 41,131,704	$ 45,556,472