Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 31,242	$ 25,482
Accounts receivable, net	43,845us-gaap_AccountsReceivableNetCurrent	41,359us-gaap_AccountsReceivableNetCurrent
Other receivables	6,324us-gaap_OtherReceivables	2,634us-gaap_OtherReceivables
Inventories, net	18,475us-gaap_InventoryNet	24,928us-gaap_InventoryNet
Inventory deposit, net	0rsys_InventoryDepositNet	481rsys_InventoryDepositNet
Other current assets	3,276us-gaap_OtherAssetsCurrent	4,688us-gaap_OtherAssetsCurrent
Deferred tax assets, net	222us-gaap_DeferredTaxAssetsNetCurrent	1,121us-gaap_DeferredTaxAssetsNetCurrent
Total current assets	103,384us-gaap_AssetsCurrent	100,693us-gaap_AssetsCurrent
Property and equipment, net	9,786us-gaap_PropertyPlantAndEquipmentNet	14,854us-gaap_PropertyPlantAndEquipmentNet
Intangible assets, net	43,224	56,510
Long-term deferred tax assets, net	858us-gaap_DeferredTaxAssetsNetNoncurrent	2,686us-gaap_DeferredTaxAssetsNetNoncurrent
Other assets	3,468us-gaap_OtherAssetsNoncurrent	1,442us-gaap_OtherAssetsNoncurrent
Total assets	160,720us-gaap_Assets	176,185us-gaap_Assets
Current liabilities:
Accounts payable	33,679us-gaap_AccountsPayableCurrent	35,081us-gaap_AccountsPayableCurrent
Accrued wages and bonuses	5,006	5,547
Deferred income	6,204rsys_DeferredIncome	8,167rsys_DeferredIncome
Convertible senior notes	18,000us-gaap_ConvertibleNotesPayableCurrent	0us-gaap_ConvertibleNotesPayableCurrent
Line of credit	10,000	15,000
Other accrued liabilities	7,255us-gaap_AccruedLiabilitiesCurrent	9,978us-gaap_AccruedLiabilitiesCurrent
Total current liabilities	80,144us-gaap_LiabilitiesCurrent	73,773us-gaap_LiabilitiesCurrent
Long-term liabilities:
Convertible senior notes	0us-gaap_ConvertibleLongTermNotesPayable	18,000us-gaap_ConvertibleLongTermNotesPayable
Other long-term liabilities	2,800us-gaap_OtherLiabilitiesNoncurrent	3,276us-gaap_OtherLiabilitiesNoncurrent
Total long-term liabilities	2,800us-gaap_LiabilitiesNoncurrent	21,276us-gaap_LiabilitiesNoncurrent
Total liabilities	82,944us-gaap_Liabilities	95,049us-gaap_Liabilities
Commitments and contingencies (Note 14)
Preferred stock — $0.01 par value, 5,664 shares authorized; none issued or outstanding at December 31, 2014 and December 31, 2013	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common stock — no par value, 100,000 shares authorized; 36,532 and 29,198 shares issued and outstanding at December 31, 2014 and December 31, 2013	334,024us-gaap_CommonStockValue	309,370us-gaap_CommonStockValue
Accumulated deficit	(256,671)	(229,090)
Accumulated other comprehensive income:
Cumulative translation adjustments	1,175	1,731
Unrealized loss on hedge instruments	(752)	(875)
Total accumulated other comprehensive income	423	856
Total shareholders’ equity	77,776us-gaap_StockholdersEquity	81,136us-gaap_StockholdersEquity
Total liabilities and shareholders’ equity	$ 160,720	$ 176,185

Amount of deferred income as of the balance sheet date. Deferred income represents amounts received or billed related to a revenue producing activity for which revenue has not yet been recognized. Such revenue producing activities include distributor sales, undelivered elements of a multiple element revenue arrangement, and service sales. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. In addition, certain amounts are recorded net of costs directly related to such revenue producing activities.

No definition available.