Consolidated Balance Sheets Statement (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 722	$ 3,986
Restricted cash	188	170
Available-for-sale investments, at quoted market value (cost of zero and $3,142 at September 30, 2014 and December 31, 2013, respectively)	0	3,535
Accounts receivable – trade, net	1,697	1,414
Inventories, net	4,917	3,816
Deferred cost of goods sold	305	849
Deposits Assets, Current	247	0
Prepaid expenses and other current assets	506	926
Total current assets	8,582	14,696
Property and equipment, net	780	941
Intangible and other assets, net	371	432
Total assets	9,733	16,069
Current liabilities
Current portion of capital lease obligation	0	8
Revolving line of credit	0	583
Current portion of term loan	779	753
Accounts payable	5,095	2,323
Accrued liabilities	2,117	2,357
Advances on contracts in progress	2,301	1,433
Deferred compensation	0	3,535
Total current liabilities	10,292	10,992
Long-term portion of term loan	4,476	5,064
Other long-term liabilities	837	726
Total long-term liabilities	5,313	5,790
Total liabilities	15,605	16,782
Stockholders’ deficit
Common stock, $0.01 par value; 20,000,000 shares authorized; 9,207,874 shares issued and outstanding on September 30, 2014 and December 31, 2013	93	93
Additional paid-in capital	23,306	23,267
Accumulated deficit	(30,357)	(24,422)
Accumulated other comprehensive income	0	393
Total Spire Corporation stockholders' deficit	(6,958)	(669)
Noncontrolling interest	1,086	(44)
Total stockholders’ deficit	(5,872)	(713)
Total liabilities and stockholders’ deficit	$ 9,733	$ 16,069