Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 338,069	$ 380,381
Trade accounts receivable, net of allowance for doubtful accounts of $42,000 at June 30, 2017 and $30,000 at December 31, 2016	3,441,272	2,276,608
Inventories	3,254,264	3,060,085
Prepaid expenses and other current assets	610,204	614,362
Total current assets	7,643,809	6,331,436
Property, plant and equipment, net	6,396,582	6,440,911
Assets held for sale, net	688,750	688,750
Intangible assets, net	44,401	30,093
Other assets	10,629	156,231
Total assets	14,784,171	13,647,421
Current liabilities:
Revolving line of credit	2,670,000	1,785,795
Equipment line of credit	504,781	102,500
Term notes payable, current portion	2,217,480	487,468
Accounts payable	2,611,071	1,744,261
Accrued expenses and other current liabilities	439,474	333,361
Customer deposits	210,465	122,290
Deferred revenue, current	173,722	224,988
Total current liabilities	8,826,993	4,800,663
Long-term liabilities:
Term notes payable, non-current portion		1,970,863
Subordinated promissory notes	436,471	432,011
Deferred revenue, non-current portion		156,953
Total long-term liabilities	436,471	2,559,827
Total liabilities	9,263,464	7,360,490
Commitments and Contingencies
Shareholders' equity:
Preferred stock, $0.001 par value; 2,000,000 shares authorized, none issued
Common stock, $0.01 par value; 10,000,000 shares authorized; 3,926,491 issued, 2,820,999 outstanding at June 30, 2017 and 3,926,491 issued, 2,816,639 outstanding at December 31, 2016	39,265	39,265
Additional paid-in-capital	11,489,089	11,457,320
Treasury stock at cost, 1,105,492 shares at June 30, 2017 and 1,109,852 shares at December 31, 2016	(3,016,667)	(3,028,564)
Accumulated deficit	(2,990,980)	(2,181,090)
Total shareholders’ equity	5,520,707	6,286,931
Total liabilities and shareholders’ equity	$ 14,784,171	$ 13,647,421