Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 7,569,537	$ 5,866,123
Short-term investments	1,501,554us-gaap_MarketableSecuritiesCurrent	5,076,930us-gaap_MarketableSecuritiesCurrent
Royalty receivables, net of reserves of $173,921 in 2013 and $92,723 in 2012	1,175,218us-gaap_AccountsReceivableNetCurrent	867,162us-gaap_AccountsReceivableNetCurrent
Prepaid expenses and other current assets	121,252	135,080
Total current assets	10,367,561us-gaap_AssetsCurrent	11,945,295us-gaap_AssetsCurrent
Fixed assets, net	660,201us-gaap_PropertyPlantAndEquipmentNet	64,365us-gaap_PropertyPlantAndEquipmentNet
Long-term investments	1,503,525us-gaap_LongTermInvestments
Deposits and other assets	33,567refr_DepositsAndOtherAssetsNonCurrent	22,605refr_DepositsAndOtherAssetsNonCurrent
Total assets	12,564,854us-gaap_Assets	12,032,265us-gaap_Assets
Current liabilities:
Accounts payable	159,312us-gaap_AccountsPayableCurrent	56,603us-gaap_AccountsPayableCurrent
Accrued expenses and other	323,372us-gaap_AccruedLiabilitiesCurrent	80,725us-gaap_AccruedLiabilitiesCurrent
Deferred revenue		25,000us-gaap_DeferredRevenueCurrent
Total current liabilities	482,684us-gaap_LiabilitiesCurrent	162,328us-gaap_LiabilitiesCurrent
Shareholders' equity:
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 23,924,465 and 23,109,665 shares for 2014 and 2013	2,392us-gaap_CommonStockValue	2,311us-gaap_CommonStockValue
Additional paid-in capital	110,210,480	105,584,606
Accumulated deficit	(98,130,702)	(93,716,980)
Total shareholders' equity	12,082,170us-gaap_StockholdersEquity	11,869,937us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	$ 12,564,854	$ 12,032,265

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment after one year or beyond the operating cycle, if longer. Also includes aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

No definition available.