Label	Element	Value
Restricted Cash, Current	us-gaap_RestrictedCashCurrent	$ 4,005,000
Restricted Cash, Current	us-gaap_RestrictedCashCurrent	0
Restricted Cash, Current	us-gaap_RestrictedCashCurrent	0
Escrow Deposit	us-gaap_EscrowDeposit	4,005,000
Escrow Deposit	us-gaap_EscrowDeposit	0
Escrow Deposit	us-gaap_EscrowDeposit	0
Series A Preferred Stock [Member]
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	0
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	1,015,000
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	0
Redeemable Preferred Stock [Member]
Temporary Equity, Guaranteed Return	rose_TemporaryEquityGuaranteedReturn	710,000
Temporary Equity, Guaranteed Return	rose_TemporaryEquityGuaranteedReturn	6,798,000
Temporary Equity, Guaranteed Return	rose_TemporaryEquityGuaranteedReturn	6,386,000
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	937,000
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	2,347,000
Dividends Payable	us-gaap_DividendsPayableCurrentAndNoncurrent	$ 3,950,000