Accrued Expenses and Other Current Liabilities (Details) (USD $)	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Accrued expenses
Accrued stockholder interest	$ 38,314		$ 10,769
Accrued compensation	298,511		320,251
Accrued warranty	106,703	107,589	115,566	140,307	142,396	135,708
Accrued inventory purchases	228,728		81,146
Customer deposits	53,827		5,841
Deferred rent	68,957		65,380
Accrued taxes and other	64,190		124,118
Accrued expenses, Total	$ 859,230		$ 723,071